code: def __init__(self, config_list):
      # ipdb.set_trace()
      self.cluster = [
          RemoteController(*config) for config in config_list
      ]
      self._pt = 0
  
imports: from subprocess import Popen, PIPE
  from threading import Thread, Lock
  from queue import Queue
  from time import sleep
  from sys import stderr
  import re
  import json
label_desc: Use image node_id 1 to create a new ClusterController object  with example: obj = ClusterController(config_list)